C#Winform无标题窗口的拖放实现

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最新推荐文章于 2023-08-23 16:02:50 发布

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分类专栏： C#WinForm

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private const int WM_NCLBUTTONDOWN = 0xA1;
private const int HTCAPTION = 2;
[DllImport("user32.dll", EntryPoint="SendMessageA")]
private static extern int SendMessage (int hwnd, int wMsg, int wParam, int lParam);
[DllImport("user32.dll")]
private static extern int ReleaseCapture ();
private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
	//为当前的应用程序释放鼠标捕获
	ReleaseCapture();
	//发送消息，让系统误以为你在标题拦上按下鼠标
        SendMessage((int)this.Handle,WM_NCLBUTTONDOWN,HTCAPTION,0);
}